Retainer ring for chemical mechanical polishing device



FIG. 1 is a top perspective view of a retainer ring for chemical mechanical polishing device showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a bottom perspective view thereof.

The broken lines in the figures depict portions of the retainer ring for chemical mechanical polishing device which form no part of the claimed design. 

CLAIM I claim the ornamental design for a retainer ring for chemical mechanical polishing device, as shown and described. 